Tile-anchoring device



Sept. 25, 1928.

r 1,685,568 I G. P. JACKSON TILE ANCHORING DEVICE Filed April 14, 1925 ENTORI' 951 BY j Z ATTORNEYS Patented Sept, 25, 1928; l'

UNITED-STATES.,PA-TEWNT.

1,685,568 arm -5* "GEORGE. r. .ucxsomor rLusnnre, New You, Assrexon' 'ro convex-ion midi: NEEBING coaromrron, or raw YORK, N. y atconrona'rrox'or NEW Tome rn n-mcnonme nnv'rcn Originalapplication filed April 21, 1923, Serial No. 683,609. Divided v1925. Serial No. 22.945..'

This invention relates to tile anchoring devices, such for instance, as are used for the support of tile or brick'furnace walls or linings, and this application is a division of m 5 co-pending application, No 633,609, filed 'April 21, 1923, which illustrates a furnace wall where such anchoring devices are used.

It is now customary in the art of burning pulverized fuel to make the furnace walls hollow and to pass air for combustion through.

these walls for the purpose of preheating it' in order that greater efiiciency of combustion may be obtained. As a result, the furnacet emperatures attained are-greater and the walls are subjected to a more intense heat. The air circulating within them,- however, is continually absorbing such heat. It consequently serves a two-fold purpose, namely, the increasing of combustion efliciency, and the cooling of the furnace walls with its consequent saving of the brickwork.

On account of variations in the rate of firing and consequent differences in the length of the downward travel of the fuel-and-fiame stream, which will not always extenddown the full length. of the furnace wall, it is desirable to divide the space within the wall:

into horizontal compartments or ducts so i that air may .be circulated'thro ugh one or any number of them. For this purpose horizontal layers of holding tileare provided n theinner wall which act not only as partitions to form the ducts but are used to, support the inner wall laterally from the outer.

Since the inner wall is subjected to greater heat than the outer, and is itself subjectto-the action of the-flame on its inner face and the .action of the cooling air on itsouter face, it.

must therefore expandmore than the outer =1 wall, as well as have some tendency to buckle or collapse;

My invention primarily the provision of an anchoring device to support the holding tile fromthe outer walliwhich at the same time will allow for suflicient relative freedom ofv motion between the walls to 'prevent the shearing of! of the holding tilei- ,It also provides for freedom of expansion and contraction of the bricks and fol-vertical and longi-H J0. tudinal' movements in the walldue to such erpansion and contraction. A- further object of theinvention' is to make the renewal and plac ment of the Emory bricks simple and this application fled'April 14, l

which may occur tothose skilled in the art, I I

obtain by means of the construction illusy trated in the accompanying, drawings, where- 1n: a I Fig. Us a vertical sectionfof part of a hollow-wall pulverized fuel furnace showing an application of my invention; Fig. 2 is'aview in perspective my anchoring members; and o Fig. 3 is a perspective view'of an alternatlve form of the anchor Referring first to Fig- 1, I have illustrated .the forward upper quarter of a pulverized fuel combustion chamber 7 :with its front wall 8, roof 9,- fuel burner nozzles 10 andwater tubes 11; The wall 8,Iat"t he upper part of of one of the furnace, asshown, is of hollow oonstruction, the outer portion of the wall being built up ofvertical steel beams or. buck-stays l2, attached to \which on the inner side are hori zontal I or H beams 13. Built up on the beams 13 and supported by them is a wall ofbricks 14, or other suitable material, which may have on its outer side a thermo-insulative covering 15, for instance a layer of asbestos. The inner portion of the wall is a refractory lining built 1 up of alternate horizontal courses of holding tile and bricks 16 and '17, supported vertically, independent of the outer wa l, on the part 18 of thexwall 8. At the top of this refractory lining is a filler block 19', or other suitable closure between the outer bricks-14 and thereof 9, this arrangement constituting a slip-joint to allow. for movement of the refractory lining due to expansion, and contraction; The

passages 20 which may extend either part way or entfirely around the furnace are the conduit's for the air, which, after-being heated by its passing through said conduits, is ordinarily admitted into the combustion chamber terval's, to mingle the said air with the down- .wardly directed fueI-and-fl'amestream from the burner noziles 10:

My invention, designed to support the lining laterally, is theggripping; member 23,.

fingers26,-27.- It'may alsovhave raised sur 7 or abutments 28, on the edfiibofi the weblike portion 25, to bear 8.811118? 1 beam' 13.

through the ports 21arranged, at suitable in-- with the fingers 26', 27, gri

bricks, efiectually holds the refractory wall fromlateral displacement but at the same time permits the necessary vertical movement ofsaid wall without danger of breaking or crackin the brick 16. The members 23 are prefera ly spaced at suitable distances hori- 'zontally toallow the fingers 26, 27 tofit between adjacent blocks 14, and they may be welded in position on the I beams 13 or left free in cases where some horizontal sliding of the gripper along the I beamis desirable.

A certain amount of horizontal movement in the wall, however, is taken care of by a slight rocking movementof the bricks around the heads 24 of the grlppers, and for this purpose I make the tially curved surface, or in other words, with I wall run,vert1cally instead of horizontally,v

-. andmust fit'a shown in Fig. 3, is

a somewhat oval cross-section.

The alternative form of my invention, as for use in furnaces where the brick sup' orting I beams of the outer and its application will, I believe, be clear without further explanation. It is necessary in this instance, of course, that the web 25 .be very narrow sinceitis crosswise of the head narrow groove or slot in the brick. y

The ease with which the refractory lining of a furnace'can be built up, taken down, or'

the locking bricks repaired is quite obvious,

down on the T 16 being merely slid up or heads 24 of the grippers.

I claim: 1. A brick-anchoring member comprising a brick-engaging head curved convexly across its outer face, support engaging means constructed to revent displacement of the member inward ytor outwardly from the support and a web connection between the, head and the sup ort-enga 'ng means.

2. A rick-anc ormg member of substanhead 24 with a substantial T-section,- the heakl ofthe T being curved for interlocking but rocking engagement in a re-entrant recess in anchored and the'leg of the T having means for grippinga support. I 7

3. A T-sha ed anchoring member for tiles, said member, 7 aving a head'and' a'web with support engagin means on theweband with the head curved across itsouter face, said support engaging means comprising two inwardly exten ing hooks. r

4. An'anchorin member. of substantially T cross. -section, t e head of the T being curved across its outer face:and adapted to interlock with 81 recess in the member to be the member to be anchored, and the legof the T having fingers brick-anchoring member having means toengage a support on one side as against lateral movementin either direction; and means to interlock with a brick on-the other side. said means being formed to provide freedom for slding motion of the-brick in one plane and roc motion in another plane, relative to the ane oring m mber.

6. A wall structure comprising,- incombination, a wall with re-enforcing girders therein, another wall adjacent thereto, said second wall having at intervals bricks with re-entrant recesses, and anchoring members each adapted to engage a girder of the first wall and having means recessed brick of the second wall with freedom for vertical sliding motion and horizontal rocking motion between said bricks and anchoring members.

7. A T-shaped anchoring member for tiles,

said member having a head with a curved surface, and a web, with support-engagin means, on the web adapted to prevent later displacement of the member in either direc- GEORGE P. ACKSON.

to interlock with a 

